Mahabharata 9.57.4

भीमसेनस्तु धर्मेण युध्यमानो न जेष्यतिअन्यायेन तु युध्यन्वै हन्यादेष सुयोधनम्

bhīmasenastu dharmeṇa yudhyamāno na jeṣyatianyāyena tu yudhyanvai hanyādeṣa suyodhanam

Our plain-language meaning of this verse is waiting for scholar review.